PHP four six in (banker rounding) how to achieve? Is there a way out?

Ask PHP four to six in (banker rounding) how to achieve? Thank you, everyone.

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Ask PHP four to six in (banker rounding) how to achieve? Thank you, everyone.

The Rounding method is round (), which is documented here:
http://php.net/manual/zh/function.round.php
Such as:

php -r "echo round(1/8,2);"

Will output:

0.13

However, if your float is not coming from somewhere else (for example, $_get incoming, or taken from a database), but you calculate it yourself in two numbers, remember, do not use the PHP built-in +-*/operator, use Bcmath, execute the following code you know why:

php -r "echo 19.45-19.35;"

I also thought you were a clerical error, answered the rounding, the banker rounding method is also ROUND (), the third parameter with Php_round_half_even and php_round_half_odd can be, as

php -r "echo round(1/8,2,PHP_ROUND_HALF_ODD);"

You ask is five six into the bar, four six in the words, five how to do?

round($number, PHP_ROUND_HALF_DOWN);

UPDATE

Check it out, there really are bankers rounding this four-shed six into, five-look at the odd-even approach
Php_round_half_odd or Php_round_half_even, maybe you want it.
It's in the manual.

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